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G. A. MCCMBE.

l UNIVERSAL JOINT. APPLCArroN HLEU SEPT. 13, 1911.

11,O'7,"743. Patent-@Muna 24, 1919.

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UNITEDu srATEsPATENT OFFICE.. t

GEORGE A. ivIeCoMPE, OE IIAnTrOi-tn,` CONNECTICUT, AssIeNoIe. To TIIEHAETEOED AUTOMOTIVE PAnTs cOiviPANY, or HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.V c w i UNIVERSAL JOINT.

] ,3()7, 743 Specification of Letters Patent. Patented 111119.24 1919,

Application filed Septemberl, 1917. Serial No. 191,132. t i i To all whom t may Concern; i t curved surfaces serve` additionally" to "hold Be it `lrnown that I, GEORGE A. MCGOMBE, the shaft members in assembled relations.` a subject of the King of England, and a resi-` The torsional, strains `are all transmitted dent of Hartford, in tliecounty of Hartford, by the solidV connecting block which is di- State of Connecticut, have invented certain rectly engaged bythe pairs of horns ofeach `60 new and useful Improvements in AUniversal `shaft member. All connection pins, or driv- Joints, of which the following is a speciiicaing pins, or studs are thus eliminated, the tion. j i i j shaftmembers themselves directly `engage The object of this invention is to produce the block` and the power is transmitted a universal joint having features'of novelty throughxthe solid `connection block. This 65 and advantage. Q i j j means that each horn is supported orbacked One embodiment of the invention is shown up by all of the other horns which means in the drawings wher`ei that the wear is always evenly distributed Figure 1 is a side elevation of a complete between the four horns `and the strength of joint partly in section. i j, the joint and its ability to transmit torsional `70 Fig. 2 is a view similar to Fig. 1 showing strains is greatly increased. Itwill,` beseen the same parts but turned at an angle of 90. that all of the wear in this structure takes Fig. 3 is a sectional view,except forthe place between the wearing blocks` and the connecting block, on the line of 3, 3, of Fig. connecting block, and that the main forgings 2 looking in direction of the,` arrow. c are not subjected to any wear whatsoever. `75

Figs. 4. and 5 are detail views of one of The result is that in case itis necessary to the wearing blocks. j replace worn `parts all that is needed is to The structure comprises the usual shaft substitute new wearing blocks fand anew members a, b, of a universal joint, one of connecting block. This reduces the expense which is shown as a plate for attachment to of repairing the joint to a minimum,if any 80 a complementary part. rlhe` forms which such necessityarises. j j, these shaft members may take areimmaterial` `A dust cap` comprising the parts 25,26, so far as this invention is concerned. i is provided for the protection of the `joint Each of these shaft members is provided and the movable part 25 is held in place on with the usual pairs of diametrically oppoone shaft member by a spring 27 bearing `85 site horns 5, `5, and 10, 10, preferably inteagainst a collar `28 which vislocked to the grally and arranged 'in parallelism with the shaft member as by the keys 29 which` enter axes of the shaft member. `the circumferential groove 30. j

On the horns are mountedhardened wear- In accordance with the provisions` of the ing blocks 6, 6, and 11, `11 which may be patent statutes I have described the princi-.90

conveniently held in place as by the screws ple of operation of my invention, together 7 7, 1 i j with the apparatus which I now consider to 20, is the connecting block, preferably a represent the best embodiment thereof; butI solid forging, provided in its periphery `with desire it to be understoodthat the apparatus 40 `two pairs of diametrically Opposite recesses shown is only illustrative, and the invention 95 8, 8, and 12, 12to receive the blocks 6, 6, and can be carried outby other means. i ,z

11, 11 whichfit snugly therein but are free u -I claim asmyinvention- .t j, to move relatively therein to `accommodate 1. In a device of the'character described, the movements of the joint. coperating shaft members provided with 4.5` The block 2O at the bottomof each'recess pairs of diametrically oppositehorns, a con- 100 is of cylindrical form, as illustrated at 21, necting block provided withlengthwise slots and the inner faces of the wearing blocks 6, having parallel sidewalls within which said 6, and 11, 11 are shaped to t these cylindri` liornsarc fitted, and means separable from cal surfaces, thus providing bearings upon and movable with said horns and interposed which the angular movements of the shaft between said horns and connectingbloclr foi1 105 members may take place. The inner vfaces of `maintaining the engagement of said horns each pair of wearing blocks being in enand connecting block.

gagement with diametrically disposed por- 2. In a device of the charactendescribed tions of the curved cylindrical surfaces of cooperating shaft members provided with the connecting block, these inter-engaging pairs of diametrically opposite horns, wear- 11o f ingsurfaees on said yWearing blocksand'said connecting block.

3. In a device ofthe-character described .coperating shaft members provided with pairs ogf'diametrically opposite horns, Wearingblocks fastenedtothe 'endsof saidlhorns,

"connecting bloc'kprovided inits periphery with lengthwise slots to receive said j we'aring blocl r' s, curved jbearing *faces lformed at 'said' connectingfblocklinthe bottom of said j slots, ithefinnerv "facesof` said Wearing blocks ""beinjg curved toiitthecurved 'surfaces of 'Ifsaid connectingfblocln '4. .Inl vdevice'of'the characterdescribed ceperatingsha'ft 'members each provided #with ajpair .V of diametiically opposite horns, Y

Wearing bl'oils-fastenedfto said" horns, a disk ripheryf With llengthvvise yslts vWithin which 'saidj'vvearing blocks-are `iittcd;v and coperating curved :bearing surfaces on sai/d Wear- "ingbloc'ksandfsaid"connectingblock.

Q; "5. Illia/device of'the'character described "'cdperatingshaftmembers 'provided With gpairsofdiametrically opposite horns, Weary'in 'g ibl'offzks Ilfastened thereto 'provided Vvvith 'flatfsidejandcurved inner bearing surfaces,

' A'and' `a connecting block peripherally slotted "to receivesaid'vvearingblocks, 'the side and bottom faces of said` sl "tl being shaped i-similarly tothe yCorresp endingfcperating vfaces dii-said Wearingbldcks.`

' f6. In`a 'device' o`f thecharacter described "401coperatingushaft members provided With `pairs of diarnetiii-cally opposite horns, az connectin'g 1bleek tvvitlrlongitudinal Yslots `1`in yits Y,periphery tliefbottoms of Whichare curved 1 infthedirection lengthwisefof the/slots, and lWearing"b "loks fastened to said horns and r'Iiitted' 1to the `curvature of ithe lWalls of the slots. r Y 1 '7.5 In 'a' "device of ithe character described fc pj rating s'haft -menibers 'provided with l"pairs o'f diametrically 'opposite hornsfa connecting blockV with "peripheral slots `having parallel side Walls and a Hcurvedfbottom Wall, and 'Weari-ngfbloks 4fastened to fsaid horns fand" fittedy 'into' said'fslots the sides `of fsaid "blocks being",parallelY and the inner surface .curved tofitfthe bottom" of jthe slots.

`SVA universal L'jint `comprisingtwo main `forgings 'adapted vto gbe lconnected Ito sha-ft @epics f'tliis-iitet may beI obtained for "ve 'cents reach, `oyi addressing (the -W ashington, lD. C.

they iare removably fastened in place, and a connecting block provided with lengthwise peripheral slots Within which said Wearing blocks are positioned for movement to ac- `commodateithe movements of the main forgings.

9. In a device of the characterdescribed, 'cdperating shaft Imembers provided with =pairs of'diametricallyopposite horns, a connecting block having Ilengthwise slots, `and wearing-members receiving ysaid horns and "movable lengthwiseof said slots, said wearving members being interposed I'between said horns and connecting block.

10. In adevice of `the character described coperating shaft -membcrs provided with diametrically opposite horns, a `separate blo'clritted to eac'hhorn, a connectinglblock provided in its periphery with lengthwise 'slots 'in Which-said Wearingblocks move longitudinally, and interlocking bearing `faces 0n said -Wearingblocls and said connecting blocks'and maintainingthe engagement oi said horns and connecting` block.

. `said Wearingflnembers; being interposed be- 'tWeen said horns and conneetingl'ilock and having their 1inner faces Icurved -to .iit the curved surfaces of saidconnecting block, the 'intermediate portions f of 1 the curvedr surfaces lofeach lp air of'wearing members heilig in engagement with l'diametrically disposed portions of the curved "suraeesioftheicou- -n'ecting block.

612. In aA devicev of the character described, /coperating 'shaft members each provided with apair of diametrically opposite horns,

alWearingunember securedfto but removable from eachl of said 1 horns, af connectingililock provided wvith lengthwise slots avi thin which said Wearingfmembers are iitted to move flengthwise, Iand diametrically disposedcooperating-curved surfacesoii the inner'faces of each pair of said avearing `members-and 4ion the bottomsotthe slots of said connect `ing block.

GEORGE A. MCCQMBE.

Commissioner of Patents, 

